# Transphorm

**Canonical:** https://apis.io/providers/transphorm/  
**Website:** https://www.transphormusa.com  
**APIs profiled:** 0

Transphorm was a GaN (gallium nitride) power-semiconductor company based in Goleta, California, known for its GaN-on-Si cascode FET technology used in power supplies, fast chargers, motor drives, solar inverters, and EV charging. It was acquired by Renesas Electronics in June 2024, and transphormusa.com now redirects to the Renesas GaN power-discretes product line. Transphorm publishes no public web API surface.

## Kin Score — 4.0 / 100 (minimal)

Scored 2026-08-20 under rubric 0.12.0. Trend: flat (+0.0 from 4.0).

| Facet | Score |
|---|---|
| Discoverability | 57.4 |
| Contract Quality | 0.0 |
| Governance | 0.0 |
| Contract Governance | 0.0 |
| Operational Transparency | 0.0 |
| Developer Ergonomics | 0.0 |
| Commercial Clarity | 0.0 |
| Access Clarity | 0.0 |

Regulatory layer — **Energy & Utilities**: 8.1 (matched via tags).

## Agent readiness — 0.0 (human-only)

| Dimension | Value |
|---|---|
| Spec Presence | no |
| Agentic Access | no |
| Reversibility Documented | no |
| MCP Server | no |
| Auth Clarity | no |
| Idempotency | no |
| Error Semantics | no |
| OpenAPI Examples | no |
| Rate Limit Signal | no |
| Event Surface Described | no |
| Agent Skills | no |
| Well Known Catalog | no |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | no |

## Access

Unknown — onboarding: unknown, pricing: unknown, trial: no (confidence: low).

## Security (1)

- **Transphorm Domain Security** — TLSv1.3 · HSTS · DMARC

## Tags

Company, Frontier Tech, Semiconductors, Gallium Nitride, Power Electronics, Hardware, Renesas

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/providers/transphorm/). Scores are computed from the provider's own public artifacts under a published rubric.